This is provided to protect the measuring element from over speeding when the meter discharges to atmosphere. Also, prevents damage to the backflow preventer due to excessive flow.
英
美
释义
当仪表排放到大气时,这种装置保护测量元件不会受到过高流速的破坏。此外,也防止防回流阀受到过大流量的破坏。
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